CONFIRMED EXOPLANET
·
Sub-Neptune
K2-21 c
Orbits Host Star: K2-21
(Type M0.0)
· Distance: 272.800 Light-Years (83.645 pc)
Planetary Radius
2.490 R⊕
Planetary Mass
6.760 M⊕
Surface Gravity
1.09 g / g⊕
Equilibrium Temp
420K (+147°C / +297°F)
Orbital Period
15.502 days
Discovery Year
2015 (Transit)
Habitability Assessment
⚠️ Thermal Exclusions: High equilibrium temperature (420 K · +147°C / +297°F) places this world well interior to the runaway greenhouse threshold.
Discovery Facility: K2.
Other Worlds in the K2-21 System (1)
NASA EXOPLANET ARCHIVE COMPOSITE PARAMETERS